package com.design.pattern.adapter.interfaceAdapter;/** * create by yufeng on 2021/7/4 18:00 */public abstract class Adapter implements Target {    protected Adaptee adaptee;    public Adapter(Adaptee adaptee){        this.adaptee = adaptee;    }    public int request1() {        return 0;    }    public int request2() {        return 0;    }    public int request3() {        return 0;    }    public int request4() {        return 0;    }}